Pulse Code Modulation Question & Answers September 17, 2022 By WatElectronics This article lists 50 Pulse Code Modulation MCQs for engineering students. All the Pulse Code Modulation Questions & Answers given below include a hint and a link wherever possible to the relevant topic. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up on the fundamentals of Pulse Code Modulation. The pulse code modulation comes under the digital pulse modulation technique. The pulse amplitude, pulse width, and pulse position modulations come under the analog pulse modulation technique. Pulse code modulation is a more complex system when compared to pulse position, pulse amplitude, and pulse width modulations. The pulse code modulation system is divided into three parts they are the transmitter, transmission path, and receiver. The regenerative repeaters are used in the transmission path, whereas in transmitter sections sampling, quantizing, and encoding steps are used. The components used in the PCM receiver section are regeneration of impaired signal, decoding, and demodulation. The regenerative repeater component in the PCM transmission path is used to improve the quality of a signal. The pulse code modulation system is complex when compared to differential pulse code modulation. The transmission bandwidth requirement is less in differential pulse code modulation whereas in pulse code modulation the transmission bandwidth requirement is high. 1). The pulse code modulation comes under ___________________ modulation? Analog Digital Both a and b None of the above None Hint 2). How many factors does regenerative repeater have? Two Three Four Five None Hint 3). The pulse code modulation uses ____________________ bits per sample? Four Eight Sixteen All of the above None Hint 4). In which one of the following modulation highest bandwidths is needed? PCM Delta modulation Both a and b None of the above None Hint 5). What is the standard form of DPCM? Differential Pulse Code Modulation Directional Pulse Code Modulation Delusion Pulse Code Modulation None of the above None Hint 6). The figure shown below is a block diagram of _________________ modulation transmitter? Adaptive differential pulse code Pulse amplitude Differential pulse code None of the above None Hint 7). _______________ are the essential operations in pulse code modulation transmitter system? Sampling Encoding Quantizing All of the above None Hint 8). The pulse modulation classified into _______________________ types? Four Two Sixteen All of the above None Hint 9). What is the standard form of H-MPAPM? Hybrid Multi Pulse Amplitude and Position Modulation Hybrid Multi Pulse Amplitude and Pulse Modulation Hybrid Multi Phase Amplitude and Position Modulation None of the above None Hint 10). The delta modulation uses _____________________ bits per sample? One Eight Sixteen All of the above None Hint 11). The figure shown below is a block diagram of _________________ modulation receiver? Adaptive differential pulse code Pulse amplitude Differential pulse code None of the above None Hint 12). The sampling rate of pulse code modulation is _______________ KHz? 12 KHz 14 KHz 18 KHz 8 KHz None Hint 13). In which one of the following sampling the noise interference is minimum? Natural Flat top Instantaneous All of the above None Hint 14). The sampling rate satisfies Nyquist criteria in ___________________ sampling technique? Natural Flat top Both a and b All of the above None Hint 15). What are the advantages of DPCM? Practical usage is restricted Bit rate is high Low signalling rate None of the above None Hint Pulse Code Modulation MCQs for Quiz 16). The samplings are categorized into __________________ types? One Eight Two All of the above None Hint 17). The complexity of notation complex in ______________ system modulation? Delta Pulse code Adaptive delta Differential pulse code None Hint 18). In which one of the following sampling the interferences are statistical? Probability Non-probability Both a and b None of the above None Hint 19). The figure shown below is a block diagram of _________________ modulation receiver? Adaptive differential pulse code Pulse Code Differential pulse code None of the above None Hint 20). In which one of the following modulation lowest bandwidths is enough? PCM Delta modulation Both a and b None of the above None Hint 21). What is the standard form of ADPCM? Adaptive Differential Pulse Code Modulation A nalog Directional Pulse Code Modulation Adaptive Delusion Pulse Code Modulation None of the above None Hint 22). The sampling rate of differential pulse code modulation is _______________ KHz? 12 KHz 14 KHz 18 KHz 8 KHz None Hint 23). What are the disadvantages of DPCM? Bandwidth requirement is low Bit rate is high Low signaling rate None of the above None Hint 24). In which one of the following sampling the interferences are analytical? Probability Non-probability Both a and b None of the above None Hint 25). What is the standard form of LPCM? Linear Pulse Code Modulation Line Pulse Control Modulation Light Pulse Common Modulation None of the above None Hint 26). Which one of the following is a step to develop pulse code modulation digital signal from analog? Sampling Coding Quantization All of the above None Hint 27). Which one of the following determines the number of pixels of a digital image? Sampling Quantization Both a and b None of the above None Hint 28). The figure shown below is a block diagram of _________________ ? AQF AQB APF APB None Hint 29). What is the standard form of G-MPPM? Gradual Multi-pulse Pulse Phase Modulation Gradual Multi-pulse Pulse Pulse Modulation Gradual Multi-pulse Pulse Position Modulation None of the above None Hint 30). In which one of the following sampling the opportunity of section is fixed and known? Probability Non-probability Both a and b None of the above None Hint Pulse Code Modulation MCQs for Exams 31). Which one of the following samplings is also known as random sampling? Probability Non-probability Both a and b None of the above None Hint 32). The quantization noise and slope overload distortion present in _________________ modulation? Pulse code Differential pulse code Adaptive delta None of the above None Hint 33). In which one of the following modulation the feedback exits and the complexity of implementation is simple? Pulse code Differential pulse code Adaptive delta None of the above None Hint 34). The transmission bandwidth is less in _________________ code modulation? Pulse Differential pulse code Linear pulse code None of the above None Hint 35). What is the standard form of MPAM? Multi-pulse Pulse Angle Modulation Multi-pulse Phase Amplitude Modulation Multi-pulse Pulse Phase Modulation None of the above None Hint 36). The figure shown below is a block diagram of _________________ encoder? Adaptive differential pulse code modulation Pulse code modulation Differential pulse code modulation None of the above None Hint 37). The delta modulation uses a ___________________ bit quantizer? Two Three One Four None Hint 38). Which one of the following samplings is used to create an accurate sample? Probability Non-probability Both a and b None of the above None Hint 39). What is the standard form of MPPM? Multi-pulse Pulse Position Modulation Multi-pulse Phase Position Modulation Multi-pulse Pulse Phase Modulation None of the above None Hint 40). Which one of the following determines the tone of a pixels? Sampling Quantization Both a and b None of the above None Hint 41). The realization complexity of an overload non-uniform quantization is ___________________? Low High Better None of the above None Hint 42). What is the standard form of DAPPM? Differential Amplitude Phase Position Modulation Differential Amplitude Pulse Position Modulation Directional Amplitude Pulse Phase Modulation None of the above None Hint 43). The figure shown below is a block diagram of _________________ decoder? Adaptive differential pulse code modulation Pulse code modulation Differential pulse code modulation None of the above None Hint 44). Which one of the following modulations uses feedback? DPCM DM PCM Both a and b None Hint 45). The realization complexity of an overload uniform quantization is ___________________? Low High Better None of the above None Hint 46). What is the standard form of APF? Adaptive Prediction with Forward Estimation Angular Prediction with Forward Estimation Analog Prediction with Forward Estimation None of the above None Hint 47). The figure shown below is a block diagram of _________________ ? AQF AQB APF APB None Hint 48). Which one of the following samplings doesn’t accurately represent the population? Probability Non-probability Both a and b None of the above None Hint 49). Which one of the following samplings is also known as non-random sampling? Probability Non-probability Both a and b None of the above None Hint 50). In which one of the following sampling, the opportunity of section is not specified and unknown? Probability Non-probability Both a and b None of the above None Hint Read more about Modulation For More MCQs Pulse Width Modulation Question & Answers Phase Modulation Question & Answers Digital Modulation Question & Answers Demodulation Question & Answers Sampling Theory and Pulse Modulation Question & Answers Frequency Modulation Question & Answers Amplitude Modulation Question & Answers Modulation Question & Answers Please fill in the comment box below. Time's up
